Supported Code Coverage Levels
Coco supports the following coverage levels:
- Function coverage
- Line Coverage
- Statement Coverage
- Decision Coverage (or Branch Coverage)
- Condition Coverage
- MC/DC – Modified Condition/Decision Coverage
- MCC – Multiple Condition Coverage
The Call Coverage metric is not explictly listed but is implicitly covered by Condition Coverage, MC/DC and MCC.
Visualization
For easier analysis the source code is colored depending on whether a line, branch or condition is covered – or not:
See our site http://www.opencoverage.net for more sophisticated examples from real world projects.
Selecting the right level
Safety standards are a good source for selection of coverage levels that should be tracked. See Code Coverage Metrics Recommended by ISO 26262 for an example from the automotive industry.